Process for the manufacture of spirits.



UNITE STATES PATENT OFFICE.

GUSTAV FRITSCHE, OF STRZEBOWITZ, NEAR SOHONBRUNN, AUSTRIA-HUN GARY,ASSIGNOR TO THE ROESSLER & HASSLAOHER CHEMICAL COMPANY, OF NEW YORK, N,Y., A GOR- PORATION OF NEW YORK.

PROCESS FOR THE MANUFACTURE OF SPIRITS.

No. 884,576. I

To all whom it may concern:

Be it known that I, GUs'rAv FRITsonE, a subject of the Emperor ofAustria-Hungary, and a resident of Strzebowitz, near Schiinbrunn,Austria-Hungary, have invented a cermeans of carrying out this process,the features thereof'being more particularly pointed out hereinafter inthe claims.

It has been proven by many laborator expefiments that the antisepticpower 0 formaldehyde in connection with the manufac ture of s irits isconsiderably increased by the addition thereto of a mixture of certainamount of nitrogenous animal and vegetable substances such as forinstance milk and lupines. In the use of such a mixture there will belittle or no bacterial germination and the increase of acidity is veryslight.

While the formaldehyde by itself has a deformin action on the yeastcells, the mixture re erred to has no destructive 'effect on themembrane of the yeast cells, and the yeast treated with the mixture iseasily and quickly acclimated; It has notbeen possible so far to give ascientific reason for this peculiar phenomenon, but it is suggested thatthe combination of formaldehyde and a mixture of nitrogenous animal andvegetable substances prevents thedeforming action of the formaldehydeitself and has at the same time a deadly effect on the'bacteria. It hasbeen found by practical experiments in which a mixture of milk andlupines was used as the nitrogenous substance, that it is best to add acertain'percentage of the mixture'to the yeast as well as to the mash.

The best proportions being as follows: 0.01 64% of ormaldehyde of theactual quantity of mash and 0.18% of a mixture of milk and an extract oflupinestto the actual' uantity of mash are mixed together. To t 's isPatented April 14, 1908.

' added an e ual amount of water. 11 'of the mixture 1s added to theyeast and the bal-' ance of 89% is added to the mash;

As a concrete example of the practice of the process the followingformula is given: Five kilogramers of lupines are soaked in fifteenliters of warm water and afterbeing ground they are separated from thestarch powder. The so obtained lu ine extract is mixed with two andone-hal liters of milk and then one liter of formaldehyde is added andthe mixture brought to a total of twentytwo liters with cold water. Thismixture is suflicient for sixty hectoliters of mash.

' Practical use of the rocess in distilleries has shown that the yieldof alcohol increases to 63.7 and even 67 liters percent. per kilogram ofstarch, a result which has never beore been equaled. The higher yield ofthe alcohol covers more than six times the cost of the reagent.-

The process finds ap lication in connection with the general erments andmolds used in rain distilleries whether theprocess is by Ina t, by acid,or by the use of saccharifying moldsz or whether the work is done inclosed or open vessels or by a mixed method of working, and in generalfor the treatment of allt amylaceous matters and for all the worts ofdistilleries. c

It is obvious that other nitrogenous vegetables than lupines can beused, such as peas, or other legumes, tllePIiIlOl 1e being to make useof the proteid contained therein.

I The proportions of vegetable and animal nitrogenous substances in themixture may be varied, and-the mixture may boy-utilized in themanufacture of any kind of alcoholic spirits, without departing from thespirit of my invention.

What I claim and desire to secure by Letters Patent'of the United Statesis 1. .In a process for the manufacture of spirits the adding of amixture containing formaldehyde and a vegetable proteid;

2. In a process for the manufapture of spirits the addin of a mixturecontaining formaldeh de an a vegetable proteid substance to oth theyeast and the mash.

3. In a process for the manufacture of spirits the adding to theamyla'ceous substance of a. mixture containing formaldehyde, my name inthe presehce of two s uhscribihg milk ind a vegetablfe profieid. f fwltnesses.

4. n a, process or t emanu aoture 0 spirits the addi of a mixturecontaini GUSTAV FRITSOHE' 5 formaldehyde, nulk and a. vegetable proteidWitnesses:

to both the yeast and the mash. GERHARD FRITSGHE,

In witness whereof I have hereunto signed J HUGO KOLARZIK.

